This technique uses Outlook’s “Internet Calendar Subscription” feature which keeps a separate calendar from your primary calendar. The calendar appears as an “overlay” and can be managed separately from your main calendar.

This method is preferred for newer versions, e.g. Outlook 2010, Outlook 2010, Outlook 2013, Office 365. If you plan to sync Outlook with a BlackBerry, consider using the old-style Outlook CSV instructions instead.

Fill out the form with your preferences and click the Create Calendar button

Click the Download… button

Select the Outlook option from the Download dialog box

Click on the Download Outlook Internet Calendar Subscription button

You might be prompted to acknowledge that you are opening a hyperlink. You should click Yes.

Microsoft Office Outlook 2007, 2010, or 2013 will start up

At the prompt, Add this Internet Calendar to Outlook and subscribe to updates, click Yes.

The Internet Calendar opens in side-by-side view in the Outlook Calendar and is added to the Navigation Pane in Calendar view under Other Calendars. The calendar will check periodically for any updates made by the calendar publisher.